<?php
/**
 * Sample implementation of the Custom Header feature
 * http://codex.wordpress.org/Custom_Headers
 *
 * You can add an optional custom header image to header.php like so ...
 *
	<?php if ( get_header_image() ) : ?>
	<a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home">
		<img src="<?php header_image(); ?>" width="<?php echo esc_attr( get_custom_header()->width ); ?>" height="<?php echo esc_attr( get_custom_header()->height ); ?>" alt="">
	</a>
	<?php endif; // End header image check. ?>
 *
 * @package Dyad
 */

/**
 * Set up the WordPress core custom header feature.
 *
 * @uses dyad_header_style()
 * @uses dyad_admin_header_style()
 * @uses dyad_admin_header_image()
 */
function dyad_custom_header_setup() {
	add_theme_support( 'custom-header', apply_filters( 'dyad_custom_header_args', array(
		'width' => 1800,
		'height' => 720,
		'flex-height' => false,
		'flex-width' => true,
		'wp-head-callback'       => 'dyad_header_style',
		'admin-head-callback'    => 'dyad_admin_header_style',
		'admin-preview-callback' => 'dyad_admin_header_image',
	) ) );

}
add_action( 'after_setup_theme', 'dyad_custom_header_setup' );



if ( ! function_exists( 'dyad_header_style' ) ) :
	/**
	 * Styles the header image and text displayed on the blog
	 *
	 * @see dyad_custom_header_setup().
	 */
	function dyad_header_style() {
		$header_text_color = get_header_textcolor();

		// If no custom options for text are set, let's bail
		// get_header_textcolor() options: HEADER_TEXTCOLOR is default, hide text (returns 'blank') or any hex value.
		if ( HEADER_TEXTCOLOR == $header_text_color ) {
			return;
		}

		// If we get this far, we have custom styles. Let's do this.
		?>
		<style type="text/css">
		<?php
		// Has the text been hidden?
		if ( 'blank' == $header_text_color ) :
		?>
			.site-title,
			.site-description {
				position: absolute;
				clip: rect(1px, 1px, 1px, 1px);
			}
		<?php
		// If the user has set a custom color for the text use that.
		else :
		?>
			.site-title a,
			.site-description {
				color: #<?php echo esc_attr( $header_text_color ); ?>;
			}
		<?php endif; ?>
		</style>
		<?php
	}
endif; // dyad_header_style

if ( ! function_exists( 'dyad_admin_header_style' ) ) :
	/**
	 * Styles the header image displayed on the Appearance > Header admin panel.
	 *
	 * @see dyad_custom_header_setup().
	 */
	function dyad_admin_header_style() {
	?>
		<style type="text/css">
			.appearance_page_custom-header #headimg {
				border: none;
			}
			#headimg h1,
			#desc {
			}
			#headimg h1 {
			}
			#headimg h1 a {
			}
			#desc {
			}
			#headimg img {
			}
		</style>
	<?php
	}
endif; // dyad_admin_header_style

if ( ! function_exists( 'dyad_admin_header_image' ) ) :
	/**
	 * Custom header image markup displayed on the Appearance > Header admin panel.
	 *
	 * @see dyad_custom_header_setup().
	 */
	function dyad_admin_header_image() {
	?>
		<div id="headimg">
			<h1 class="displaying-header-text">
				<a id="name" style="<?php echo esc_attr( 'color: #' . get_header_textcolor() ); ?>" onclick="return false;" href="<?php echo esc_url( home_url( '/' ) ); ?>">
					<?php bloginfo( 'name' ); ?>
				</a>
			</h1>
			<div class="displaying-header-text" id="desc" style="<?php echo esc_attr( 'color: #' . get_header_textcolor() ); ?>"><?php bloginfo( 'description' ); ?></div>
			<?php if ( get_header_image() ) : ?>
				<img src="<?php header_image(); ?>" alt="">
			<?php endif; ?>
		</div>
	<?php
	}
endif; // dyad_admin_header_image